Slackware, the grand daddy of Linux distributions, has released a new version: Slackware 12.2. This new version runs the 2.6.27.7 version of the Linux kernel. The other updates include Xfce 4.4.3, KDE 3.5.10, HAL support etc. You can get Slackware 12.2 from one of their mirrors.

Slackware doesn't come with a lot of GUI control utilities, or pre-configured powersaving features. It is very much a do it yourself distro in that respect, and that's exactly what it's supposed to be. That's not to say you can't configure those features yourself and install whatever you want as far as GUI controls go, you can. And since you did it yourself, it will stay working as long as you want it to--no package updates breaking your hard configuration work, etc.
I hope I don't get flamed for saying this, it's just how I see things. Slackware is the most BSD-ish (is that a word?) of the Linux distributions around and always has been--from its tgz-based package system to its BSD-style init scripts. Probably one of the reasons, maybe even the big reason, I love it. It takes a bit to configure but afterward it just stays completely out of your way, just like *BSD does--it most closely resembles OpenBSD in its configuration files and init scripts.
For EEE PC Users, see the topic on the eee-user forums about Slackware. It describes the additional drivers and daemons you might want to install to smooth out the experience.